Malicious PDF — malware analysis report

Static analysis result for SHA-256 2aa42048f4e5737b…

MALICIOUS

PDF

47.9 KB Created: 2020-08-07 19:43:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 79e33cb6b02ff2ab8135f23fd1a15b80 SHA-1: e6a23bd05fff1e9a613371d73375b1ad80d109b4 SHA-256: 2aa42048f4e5737b415d026746d9a80b49c44161f43a45a14c67439b67667c5c
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains numerous embedded links, with one heuristic specifically identifying a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL that appears to be the primary lure. The presence of a link farm suggests an attempt to distribute malicious content broadly. The file's purpose is to redirect users to potentially harmful websites.

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.cc/pify?keyword=deontology+ethics+pdf
    • http://files.dismantlingracism.org/uploads/1/3/1/8/131871859/ddaa0951.pdf
    • http://files.ruralpunk.net/uploads/1/3/1/1/131164350/fizodiwifodi.pdf
    • http://files.impeccablyhandmade.com/uploads/1/3/1/4/131454850/3969551.pdf
    • https://cdn.shopify.com/s/files/1/0429/2175/4787/files/80666426878.pdf
    • https://cdn.shopify.com/s/files/1/0440/4350/1733/files/saguvutemewawisapesudo.pdf
    • https://cdn.shopify.com/s/files/1/0432/5844/5979/files/public_health_risk_assessment.pdf
    • https://cdn.shopify.com/s/files/1/0450/7333/4424/files/beautiful_creatures_book_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/8343/9003/files/93439736328.pdf
    • https://cdn.shopify.com/s/files/1/0431/7816/4387/files/daxuwaxugin.pdf
    • https://cdn.shopify.com/s/files/1/0428/9508/1635/files/filosofia_budista_principios.pdf
    • https://cdn.shopify.com/s/files/1/0431/7980/2782/files/xefitisanujat.pdf
    • https://cdn.shopify.com/s/files/1/0427/6033/9623/files/paxogazemetovekikolidiw.pdf
    • https://cdn.shopify.com/s/files/1/0430/3205/1873/files/77066399749.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/38935964995.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007af1.bin
47b22a85f1e81b6d52462ba185e233316052e4c68fc081b1faf29e49efe39be6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AF1 5212 bytes
font_01_sfnt_off00008cc4.bin
8e1ac901750465cad53b6adb3715d234a7b4bbdab2552f16767a1297fbc79f4e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8CC4 11564 bytes

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